Question

Which of the following organelles are present in an animal cell but absent in a plant cell?
A. Centrosome
B. Mitochondria
C. Lysosome
D. Ribosome

Answer 1

Hint: Organelles are found in every living cell and are responsible for the cell's various metabolic functions. The cell nucleus is the most specific organ because it contains hereditary materials that are passed down from generation to generation.

Complete answer:
The cells provide shape and structure, as well as various types of functions, to keep the entire system active. The cell contains a variety of functional structures known collectively as Organelles, which are involved in a variety of cellular functions.

A) Option A: Centrosome: The centrosome is a region in the cytoplasm and adjacent to the nucleus that contains centrioles. It is also known as the cell's microtubule organizing center. In animal cells, the centrosome aids in cell division. Plant cells do not have a centrosome. Mitochondria, ribosomes, and lysosomes are found in both animal and plant cells.

B) Option B: Mitochondria :Mitochondria are found in the cells of nearly every eukaryotic organism, including plants and animals. Mitochondria are membrane-bound cell organelles that produce the majority of the chemical energy required to power the cell's biochemical reactions (mitochondrion, singular). The mitochondrial chemical energy is stored in a small molecule known as adenosine triphosphate (ATP).

C) Option C: lysosome: Lysosomes are found in nearly all animal and plant cellsA lysosome is a cell organelle that contains digestive enzymes and is membrane-bound. Lysosomes are involved in a variety of cellular processes. They degrade extraneous or worn-out cell parts. They could be used to eliminate invading viruses and bacteria.

D) Option D: Ribosome: Ribosomes are non-membrane bound granular structures present in both plant and animal cells i.e, eukaryotic cells. Ribosomes are small particles made up of RNA and associated proteins that are responsible for protein synthesis. Proteins are required for many cellular functions such as damage repair and chemical process control. Ribosomes are found in the cytoplasm or attached to the endoplasmic reticulum.

Thus, the correct answer is option ‘A’ i.e, Centrosome.

Note: The nucleus is a double-membraned organelle that is present in all eukaryotic cells. It is the cell's largest organelle and serves as the command and control center for all cellular activities. It also serves as the cell's DNA storage facility. The nucleus is dark, round, and surrounded by a nuclear membrane. It is a porous membrane (similar to cell membrane) that forms a barrier between the cytoplasm and the nucleus;there are tiny spherical bodies called nucleolus. It also carries another essential structure called chromosomes.